2. Problem. Solve the diffusion equation for the temperature in a metallic bar of length L: du(x, t) Pu(x,t) = D (5) Ət for 0

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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2. Problem. Solve the diffusion equation for the temperature in a metallic bar of length
L:
du(x, t)
Pu(x,t)
= D ·
(5)
for 0 <x < L and with the initial condition:
J (27o/L)
for 0 <x < L/2
u(x, 0)
(6)
(2Tо/L) (L — *) for L/2 <х < L
and boundary conditions expressing the fact that the metallic bar is in thermal contact
with the environmen kept at zero temperature:
u(0, t) = u(L, t) = 0.
(7)
Transcribed Image Text:2. Problem. Solve the diffusion equation for the temperature in a metallic bar of length L: du(x, t) Pu(x,t) = D · (5) for 0 <x < L and with the initial condition: J (27o/L) for 0 <x < L/2 u(x, 0) (6) (2Tо/L) (L — *) for L/2 <х < L and boundary conditions expressing the fact that the metallic bar is in thermal contact with the environmen kept at zero temperature: u(0, t) = u(L, t) = 0. (7)
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